I have NEVER used the 2802 cam in a 455 at any compression ratio, so I'd really be guessing as to how well it would work or not? My gut says it would be fine for what you are doing, and I've read good reviews from others that have went that route, as well as the very similar Crower 60243 grind.
My personal favorite in 455's at 9.5 to 1 is a custom ground HR cam with 230/242/112 specs. It's big shorter in seat timing than Dave' Stumpuller, and smaller .361" lobes, but we've made great power with that cam in 455 HO/Super Duty builds with closer to 9 to 1 compression, as well as excellent results with ported iron head builds with 46, 96, 4x and 6x heads on them.
I have used the Crower 60919 cam in 455's down as low as 9.3 to 1 compression, and with Rhoad's lifters and 1.5 rockers they work very well, but that "package" is still best suited for closer to 10 to 1 compression and high ratio rockers like the Harland Sharp 1.65's or Crane 1.73 Ford units.......Cliff
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https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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